function showMails(op){
		var ref1= document.getElementById("button");
		if(ref1.firstChild.nodeValue=="Ocultar"){
			document.getElementById('infocontactos').style.display = (op==0)?'block':'none';
			var tx = document.createTextNode("Ver");
			ref1.removeChild(ref1.firstChild);					
			ref1.appendChild(tx);
		}
		else{
			document.getElementById('infocontactos').style.display = (op==1)?'block':'none';
			var tx = document.createTextNode("Ocultar");
			ref1.removeChild(ref1.firstChild);					
			ref1.appendChild(tx);
		}
}